gru: add user request to specify gru slice
Add a user request to specify the gru instruction slice parameter for user
contexts.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index 347004e..0c20be0 100644
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -321,6 +321,7 @@
gts->ts_tsid = tsid;
gts->ts_ctxnum = NULLCTX;
gts->ts_tlb_int_select = -1;
+ gts->ts_cch_req_slice = -1;
gts->ts_sizeavail = GRU_SIZEAVAIL(PAGE_SHIFT);
if (vma) {
gts->ts_mm = current->mm;
@@ -566,6 +567,12 @@
gts->ts_tlb_int_select = gru_cpu_fault_map_id();
cch->tlb_int_select = gts->ts_tlb_int_select;
}
+ if (gts->ts_cch_req_slice >= 0) {
+ cch->req_slice_set_enable = 1;
+ cch->req_slice = gts->ts_cch_req_slice;
+ } else {
+ cch->req_slice_set_enable =0;
+ }
cch->tfm_done_bit_enable = 0;
cch->dsr_allocation_map = gts->ts_dsr_map;
cch->cbr_allocation_map = gts->ts_cbr_map;